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a) 55% - 33
100% - x
3300=55x / : 55
x = 60
b) 45% - 27
100%- x
2700=45x /:45
x=60
c) 75%-225
100%-x
22500=75x /:75
x= 300
d) 65% - 26
100% - x
2600=65x /:65
x = 40
33*100% /55%=3300/55=60
b) 45% tej liczby wynosi 27
27*100% / 45%=2700/45=60
c) 75% tej liczby wynosi 225
225*100% /75%=22500/75=300
d) 65% tej liczby wynosi 26
26*100% / 65% = 2600/65=40